MCP server

Mariner GPS Tools

com.watchandnavy/mariner-gps-tools

Checked 28 Oct 2026, 09:03 UTC · Connected to it and listed its tools

Marine navigation calculators for GPS distance, bearing, cross track error, coordinates and speed.

Working at last checkVerified publisher: watchandnavy.comAbout 1,933 tokens per request once connected6 tools

https://marinergps.tools/mcp

At a glance

Type: MCP server
Publisher: watchandnavy.com (verified by the MCP Registry)
Status: Working at last check
Tools: 6
Token cost: About 1,933 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 28 Oct 2026, 09:03 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http mariner-gps-tools https://marinergps.tools/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.mariner-gps-tools]
url = "https://marinergps.tools/mcp"

Gemini CLI

{"mcpServers":{"mariner-gps-tools":{"httpUrl":"https://marinergps.tools/mcp"}}}

Cursor

{"mcpServers":{"mariner-gps-tools":{"url":"https://marinergps.tools/mcp"}}}

VS Code

{"servers":{"mariner-gps-tools":{"type":"http","url":"https://marinergps.tools/mcp"}}}

Antigravity

agy mcp add mariner-gps-tools https://marinergps.tools/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"mariner-gps-tools","server_url":"https://marinergps.tools/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"mariner-gps-tools","server_url":"https://marinergps.tools/mcp"}

calculate_bearing ~421 tokens
Calculate the initial true bearing between two GPS coordinates.
calculate_cross_track_error ~682 tokens
Calculate cross track error (XTE) — the perpendicular distance from a vessel position to the great-circle track between two waypoints — plus side of track (port/starboard) and along-track distances.
calculate_distance ~424 tokens
Calculate great-circle and rhumb-line routes between two GPS coordinates.
convert_coordinates ~213 tokens
Parse latitude and longitude and format them as decimal degrees or DMS.
convert_speed ~145 tokens
Convert a speed value between knots, mph, km/h, m/s, and ft/s.
list_tools ~48 tokens
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